Slp; Details And Parameterization - Siemens SINUMERIK MC Commissioning Manual

4.13

SLP

Definition according to EN 61800-5-2:
"The SLP function prevents the motor shaft from
exceeding the specified position limit(s)."
Examples of how the function can be used
Example
It is not permissible that the drive exits the specified
position ranges.
The Safely-Limited Position function (SLP) is used to safely monitor the limits of two traversing
and/or positioning ranges, which are toggled between using a safe signal.
Features
● Selection via terminals or PROFIsafe
● 2 position ranges, each defined by a limit switch pair
● Safe switchover between the two position ranges
● Adjustable stop response
● To move the motor out of the unauthorized range, you must execute a special sequence
(see "Retraction (Page 164)").
4.13.1

Details and parameterization

The Safely-Limited Position function (SLP) is used to safely monitor the limits of two traversing
or positioning ranges which can be switched over by a safe signal.
Requirements
For the Safely-Limited Position function, the following requirements must be met:
● The use of one or two suitable encoders for the extended safety functions with encoder (see
also Chapter "Safe actual value sensing with encoder system (Page 191)")
● Determining the absolute position of the drive by referencing during commissioning and
after all actions after which a safe absolute reference can no longer be guaranteed (POWER
ON, parking)
Safety Integrated (with SINAMICS S120)
Commissioning Manual, 02/2020, A5E46305916B AB
Safety functions integrated in the drive
Possible solution
● Select SLP in the converter; inhibit the range
that is not permitted.
● After the enabled range has been exited, a
parameterizable stop response is initiated.
4.13 SLP
161